Don't call loaded callback from custom helpers if it is inherited

src/compile.coffee

@@ -137,8 +137,8 @@ Compile =
 
   helper: (ast, model, controller) ->
     dynamic = new DynamicNode(ast)
-    renderBlock = (model=model, controller=controller) ->
-      new View(null, ast.children).render(model, controller)
+    renderBlock = (model=model, blockController=controller) ->
+      new View(null, ast.children).render(model, blockController, controller, controller is blockController)
     helperFunction = Serenade.Helpers[ast.command] or throw SyntaxError "no helper #{ast.command} defined"
     context = { model, controller, render: renderBlock }
     update = ->

test/integration/custom_helper.spec.coffee

@@ -324,3 +324,29 @@ describe 'Custom helpers', ->
       expect(@body).to.have.element('div > #foo')
       expect(@body).to.have.element('div > #quox')
       expect(@body).not.to.have.element('div > #test')
+
+  it "calls loaded callback if controller is new", ->
+    funked = null
+    class TestCon
+      loaded: -> funked = 'foo'
+
+    Serenade.Helpers.funky = -> @render({}, TestCon)
+
+    @render '''
+      ul
+        - funky
+    '''
+    expect(funked).to.eql('foo')
+
+  it "does not call loaded callback if controller is inherited", ->
+    funked = 0
+    class TestCon
+      loaded: -> funked += 1
+
+    Serenade.Helpers.funky = -> @render({}, @controller)
+
+    @render '''
+      ul
+        - funky
+    ''', {}, TestCon
+    expect(funked).to.eql(1)